Sphaerolobium pubescens R.Butcher

Scientific Description

Erect, shrub, spindly shrub (broom-like). Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades clearly present, simple, alternate, not continuous with stem, 4-6.5 mm long, 0.3-0.7 mm wide, glabrous, flat with flat margins; margins entire; tubercles absent; pustules or glands absent. Stipules apparently absent even from the youngest leaves. Pedicel present, 1.3-1.7 mm long, hairy. Bracteoles present and persistent. Calyx 4-4.8 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 5.2-7 mm long, uniformly coloured, yellow; claws present; standard 5.6-6.2 mm long, glabrous, not auriculate, wings 5-6.2 mm long, not auriculate, keel 4.5-5 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 0.3-0.4 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 2.7-3.6 mm long. Ovary stipitate; style 6-6.5 mm long, hairy or glandular towards the base, bearded (with a tuft of hairs at apex), terete. Fruit dehiscent (a pod or follicle), stipitate, not constricted between the seeds, round in cross-section, hairy, with simple hairs, not beaked. Flowers in October and November. Occurs in the South-West Botanical Province, in the Jarrah Forest, Warren and Esperance IBRA regions.